Emergency Lighting Transfer System Model: ELTS2 Installation and User Operation Manual

Transcription

1 Emergency Lighting Transfer System Model: ELTS2 Installation and User Operation Manual Part Number: 1096M1200 Rev: E Released:

2 ETC is a registered trademark of Electronic Theatre Controls, Inc. in the United States and other countries. All other trademarks, both marked and not marked, are the property of their respective owners. ETC intends this document, whether printed or electronic, to be provided in its entirety. This product is intended for professional use only. Read this entire document before using this product.

3 Table of Contents Section 1 Introduction Using this Manual Compliance and Standards Contacting ETC Warnings and Notice Conventions Product Overview Type D (Discrete Feed) Overview Type M (Main Feed) Overview Standard Features Product Variants Definitions Section 2 Installation Installation Requirements Installation Environment Clearance Electrical Requirements Sense Feed Requirements Transfer Switch Specification Verify Contents of the Shipping Carton Parts and Specialty Tools Required Cable Specification and Conduit Access Installation Procedure Determine the Installation Location Install Mounting Hardware Rough-In Conduit and Cable Connect Emergency Discrete Inputs for Type D Unit Connect Emergency Discrete Input Wires to the Terminal Strip Connect Emergency Mains for Type M Unit Connect Mains Feed Connect Wiring Connect Normal Input Wires to the Transfer Switch Connect Load Output Wires to the Terminal Strip Connect 120 VAC Sense Power Wiring Connect 240 and 277 VAC Sense Power Wiring Connect Fire Alarm and Remote Station Wiring Power Up and Check System Power Up Check System Voltage Table of Contents i

4 Manual Operation Automatic Operation Test Section 3 Operation How the ELTS2 Works How the ELTS2 Determines a Power Failure How Time Delays Work Fire Alarm Contact Input Operation Local and Remote Control Station Operation Adjust the Power Transfer Delays Test Procedure Local and Remote Key Switch Test Fire Alarm Test Manual Operation Service Preventive Maintenance Replacement Parts Appendix A Side Mount Hardware Installation Overview Procedure ii ELTS2 Installation and User Operation Manual

5 Section 1 Introduction Welcome to the Emergency Lighting Transfer System (ELTS2) Installation and User Operation Manual. This manual contains the procedures for safe and efficient installation and user operation of the UL 1008 listed Emergency Lighting Transfer System. Using this Manual This manual is divided into three sections: Introduction and Product Overview Installation Procedure and Power Up and Check System Operation and How the ELTS2 Works Compliance and Standards The ELTS2 meets or exceeds the following regulatory standards for emergency lighting transfer devices: Full UL and cul Listing and Approval for emergency transfer - ANSI/UL 1008 Transfer Switch Equipment, UL File # E Complies with ANSI/NFPA 110, Standard for Emergency and Standby Power Systems Satisfies requirements of the National Electrical Code (NFPA 70): - Article Emergency Systems - Article Legally Required Standby Systems - Article Optional Standby Systems - Section 518.3(C)- Assembly Occupancies - Section Theatres and Similar Locations - Section (C) - Motion Picture Projection Rooms Introduction 1

6 Contacting ETC If you are having difficulties, your most convenient resources are the references given in this user manual. To search more widely, try the ETC Web site at etcconnect.com. If none of these resources is sufficient, contact ETC Technical Services directly at one of the offices identified below. Emergency service is available from all ETC offices outside of normal business hours. When calling for help, please have the following information handy: Product model and serial number A reference list of other components in your system Americas United Kingdom ETC, Inc. ETC Ltd Technical Services Department Technical Services Department 3031 Pleasant View Road Victoria Industrial Estate Middleton, WI Victoria Road, (USA, toll-free) London W3 6UU England (0) service@etcconnect.com service@etceurope.com Asia Germany ETC Asia ETC GmbH Technical Services Department Technical Services Department Room 1801, 18/F Ohmstrasse 3 Tower 1, Phase 1 Enterprise Square Holzkirchen, Germany 9 Sheung Yuet Road +49 (80 24) Kowloon Bay, Kowloon, Hong Kong techserv-hoki@etcconnect.com service@etcasia.com 2 ELTS2 Installation and User Operation Manual

7 Warnings and Notice Conventions These symbols are used throughout this document to alert you to danger or important information. Note: Notes are helpful hints and information that is supplemental to the main text. CAUTION: A Caution statement indicates situations where there may be undefined or unwanted consequences of an action, potential for data loss or an equipment problem. WARNING: A Warning statement indicates situations where damage may occur, people may be harmed, or there are serious or dangerous consequences of an action. WARNING: RISK OF ELECTRIC SHOCK! This warning statement indicates situations where there is a risk of electric shock. Please comments about this manual to: TechComm@etcconnect.com Introduction 3

8 Product Overview The ETC Emergency Lighting Transfer System (ELTS22) is a UL 1008 Listed emergency load transfer switch designed to switch lighting loads from one power source to another when there is a power failure or other emergency situation present. When a normal power failure is detected the ELTS2 automatically transfers the load (both hot and neutral conductors) of the associated dimmer output to a separate emergency power source. When normal power is restored the ELTS2 reconnects the load to normal power. The local control panel includes a test keyswitch and LED indicators which clearly display the system status. The ELTS2 is available in two panel sizes as standard, a small enclosure for two to twelve 20 amp circuits of emergency AC lighting loads and a large enclosure for two to twenty-four 20 amp circuits of emergency AC lighting loads. The ELTS2 is available with optional discrete (Type D) emergency branch circuit feeds from an external circuit breaker panel (by others) or emergency main feed (Type M) with built in branch circuit distribution. As shown: ELTS2-1-D Large NEMA 1 cabinet with 24 Discrete emergency circuits As shown: ELTS2-1-M-3P-12 Small NEMA 1 cabinet with Main feed and 12 emergency circuits Each transfer switch is comprised of a pair of contactors, one for two 20A circuits of normal inputs and one for two 20A circuits of emergency inputs. The two contactors in the assembly are connected by a mechanical interlock in a manner that ensures the circuits break from normal power before making the transfer to emergency power and vice versa. 4 ELTS2 Installation and User Operation Manual

9 FIRE ALARM NORMAL MODE EMERGENCY MODE AUTO NORMAL EMERGENCY POWER POWER HOUSELIGHTS AUTO NORMAL EMERGENCY HOUSELIGHTS AUTO NORMAL EMERGENCY HOUSELIGHTS AUTO NORMAL EMERGENCY HOUSELIGHTS AUTO NORMAL EMERGENCY HOUSELIGHTS AUTO NORMAL EMERGENCY Type D (Discrete Feed) Overview Type D ELTS2 units, each 20A emergency circuit, hot and neutral conductors, are independently fed from an adjacent emergency branch circuit breaker panel (by others). Normal 20A circuits are fed from an adjacent dimmer rack or branch circuit panel. Normal sense power wiring must be run from an external 10A circuit breaker. Note: The sense feed power consumption is essentially none. NORMAL (ONLY) LIGHTING LOADS NORMAL / EMERGENCY LIGHTING LOADS DIMMER OUTPUT TO NORMAL / EMERGENCY LIGHTING LOADS DIMMER RACK OR BREAKER PANEL NORMAL SENSE 1 OR 3Ø & N VIA 10A CIRUIT BREAKER (BY OTHERS) EMERGENCY BRANCH CIRCUIT PANEL (BY OTHERS) EMERGENCY LIGHTING CIRCUIT FEEDS ELTS - EMERGENCY LIGHTING TRANSFER SYSTEM (2) 16 AWG CLASS 2 (DRY CONTACT INPUT) (5) 16 AWG 24V CLASS 2 FIRE ALARM REMOTE STATIONS TYPE D - DISCRETE FEED NORMAL POWER SOURCE SENSE FEED (BY OTHERS) EMERGENCY POWER SOURCE (GENERATOR, INVERTER OR SECOND UTILITY) NEMA 1 ENCLOSURE Introduction 5

10 FIRE ALARM NORMAL MODE EMERGENCY MODE AUTO NORMAL EMERGENCY POWER POWER! WARNING! To reduce the risk of electric shock or injury to persons, disconnect all sources of supply before servicing. HOUSELIGHTS AUTO NORMAL EMERGENCY HOUSELIGHTS AUTO NORMAL EMERGENCY HOUSELIGHTS AUTO NORMAL EMERGENCY HOUSELIGHTS AUTO NORMAL EMERGENCY HOUSELIGHTS AUTO NORMAL EMERGENCY Type M (Main Feed) Overview Type M ELTS2 units, emergency mains are connected to phase lugs within the unit. Mains power is distributed through factory wiring to built-in branch circuit distribution and overcurrent protection. Normal 20A circuits are fed from an adjacent dimmer rack or branch circuit panel. Normal sense power wiring must be run from an external 10A circuit breaker. NORMAL (ONLY) LIGHTING LOADS NORMAL / EMERGENCY LIGHTING LOADS (2) 16 AWG CLASS 2 (DRY CONTACT INPUT) FIRE ALARM DIMMER RACK OR CIRCUIT BREAKER PANEL DIMMER OUTPUT TO NORMAL/ EMERGENCY LIGHTING LOADS NORMAL SENSE 1 OR 3Ø & N VIA 10A CIRCUIT BREAKER (BY OTHERS) ELTS - EMERGENCY LIGHTING TRANSFER SYSTEM TYPE M - MAIN FEED (5) 16 AWG 24V CLASS 2 REMOTE STATIONS NEMA 4 ENCLOSURE NORMAL POWER SENSE FEED (BY OTHERS) SOURCE EMERGENCY POWER SOURCE GENERATOR, INVERTER, OR SECOND UTILITY 6 ELTS2 Installation and User Operation Manual

11 Standard Features The ELTS2 has a highly visible integrated local control station with a three position test key switch (Auto, Normal Power, and Emergency Power) for system test. The local station also includes a full complement of system status indicators including: FIRE ALARM NORMAL MODE EMERGENCY MODE AUTO NORMAL EMERGENCY POWER POWER Normal Mode - green LED Emergency Mode - red LED Fire Alarm - red LED The ELTS2 enclosure provides ample space for contractor wiring. - Standard NEMA 1 rated enclosure is 14 AWG welded steel enclosure with a hinged locking door. - Optional NEMA 4 rated enclosure is watertight and includes a hinged locking door. 240 and 277 VAC units are provided with integral transformers to step down normal phase A and emergency phase A feeds into the control electronics. ELTS2 units are provided with 20A fuses for branch circuit protection. Dual inline pin (Dip) switches on the control electronics are provided for user-selectable timing delays for power transfer between: - the loss of normal power and the transfer to emergency power. - the restoration of normal power and the transfer from emergency power back to normal power. A normally closed dry contact closure is provided for Fire Alarm input. Up to five remote stations may be used per ELTS2 system. Remote stations include a key switch for switching between normal and emergency states. Each station also includes two LEDs illuminating the active ELTS2 state, Normal Mode or Emergency Mode. After normal power is restored the transfer switches return to the state previous to the power loss. A transfer switch consists of a pair of contactors, one for normal inputs and one for emergency inputs. - Each contactor provides connection for line and neutral of two 20A circuits on the input side. - The two contactors in the assembly are connected by a mechanical interlock which ensures the circuits break from normal power before making the transfer to emergency power. - Transfer Switches are rated for any mix of loads including tungsten, fluorescent, and discharge lamps. In general terms resistive, capacitive and inductive loads. - Transfer Switches are rated for 6,000 cycles at full tungsten load. Introduction 7

12 Product Variants The ELTS2 is a factory configured product. ELTS2 ELTS2 Enclosure Type 1 = NEMA 1 4 = NEMA 4 Emergency Feed Inputs Type D = Discrete Feeds Type M = Mains Feed Voltage Options 120 = 120 VAC 20A 240 = 240 VAC 20A 277 = 277 VAC 20A 3P = 208Y/120 VAC (3Ø 4-wire) 1P = 120/240 VAC (1Ø 3-wire) 277 = 277/480 VAC (3Ø 4-wire) Circuits 2-12 for small enclosure 2-24 for large enclosure The number of circuits ordered determines the size of enclosure provided. Circuits are available only in multiples of two. Small enclosure - limited to A transfer switches Large enclosure - limited to A transfer switches Definitions Note: Do not mix voltages within the ELTS2 unit. break -before- make - a switch that is configured to break (open) the first set of contacts before engaging (closing) the new contacts. This prevents the momentary connection of both the normal and emergency feeds at the same time. emergency feed - the power feed connected to the ELTS2 that is derived from the emergency source (generator, inverter, or second utility). Emergency Mode - the contactors are switched to a state where the load is connected to the emergency feed. emergency sense feed - wires carrying voltage and frequency from Phase A of the emergency source to the ELTS2 control electronics board for transfer switch operation in Emergency Mode. This connection is wired for you at the factory. enclosure - refers to the ELTS2 cabinet with locking door only. local station - the key switch station, with status indicators, on the front of the ELTS2 unit locking door. normal feed - the power feed connected to the ELTS2 that is derived from the normal service. Normal Mode - the contactors are switched to a state where the load is connected to the normal feed. normal sense feed - wires carrying voltage and frequency from the normal source to the ELTS2 control electronics board for transfer switch operation in Normal Mode. This feed is provided by the installing electrical contractor. power fail - when a phase of the normal power feed connected to the ELTS2 falls to below the specified voltage for that phase for the preset amount of time. During a power fail, the ELTS2 will transfer all connected lighting loads to the alternate power source when it is available and stable. remote station - a key switch station that is located in a remote location from the ELTS2 unit. sub panel - the interior panel of the ELTS2 unit including the electronics and transfer switches. Unit - refers to the entire ELTS2 including the cabinet with locking door and sub panel. 8 ELTS2 Installation and User Operation Manual

13 Section 2 Installation Installation Requirements Locate the ELTS2 unit in a location where it will not be subject to tampering or vandalism. If possible, install the ELTS2 where it is most secure from damage by a fire, flood or other incident likely to require its use. For proper operation of your ELTS2 unit, be sure the intended installation conforms to the following environmental and electrical specifications. Installation Environment 0-40 C ( F ambient temperature) dry room (30-90% humidity, non-condensing) Dust-free The ELTS2 unit should be supported by a wall strong enough to hold the enclosure fully loaded with transfer switches (large unit approximately 250 lbs). Mounting tabs are provided for installation convenience. Clearance Enclosure Size Dimensions (H x W x D) Weight (lbs) NEMA 1 Small unit - fully loaded to 12 circuits 36 x 24 x NEMA 1 Large unit - fully loaded to 24 circuits 48 x 30 x NEMA 4 Small unit - fully loaded to 12 circuits 36 x 24 x NEMA 4 Large unit - fully loaded to 24 circuits 48 x 30 x Suggested mounting 36 height to the bottom of the enclosure. Clearance on the left and right side of the enclosure should be a minimum of 2. Emergency main feed conduit may require extra space due to increased bend radius requirements for larger cables. Suggested door clearance is 36 from the front of the small enclosure and 48 from the front of the large enclosure to allow the enclosure door to open completely Installation 9

14 Electrical Requirements WARNING: Emergency (alternate) power must match normal power within the ELTS2 unit. Mixing voltages within the ELTS2 may cause system failure. The ELTS2 is available in three base voltages including 120 VAC, 240 VAC, or 277 VAC. 120 VAC / 60Hz units may be any form of 120 VAC power including: 208Y / Hz, three phase, 4 wire plus ground 120 / Hz, single phase, 3 wire plus ground Hz, single phase, 2 wire plus ground 277 VAC / 60Hz units may be any form of 277 VAC power including: 277 / Hz, three phase, 4 wire plus ground 240 VAC / 50 or 60 Hz units may be any form of 240 VAC including: 230 / Hz, three phase, 4 wire plus ground 240 / Hz, three phase, 4 wire plus ground Note: A unit manufactured as a 120 VAC unit cannot operate on a 240 or 277 VAC supply and vice-versa. 240 and 277 VAC units are manufactured with two transformers which are used to step down voltage to the control electronics board. Note: Please contact ETC Technical Services for assistance with installations involving main feed types not listed above. Maximum Input Current Ratings: 480 amps for the large unit fully loaded with 24-20A emergency circuits amps per phase in a three phase configuration amps per leg when configured for single phase 240 amps for the small unit fully loaded with 12-20A emergency circuits - 80 amps per phase in a three phase configuration amps per leg when configured for single phase. Branch circuit protection: ELTS2 units utilize built-in 20A fuses for branch circuit protection. Built-in fuses provide 65,000A Short Circuit Current Rating (SCCR) and insure compliance with NEC Section Coordination. Larger upstream breakers cannot be tripped by downstream circuit faults. ELTS2 20A circuits are rated for a maximum continuous load of: watts per circuit at 120 VAC watts per circuit at 240 or 277 VAC. Note: This equipment should be installed and wired by a qualified electrician. Always follow applicable building and electrical codes when installing this equipment. If you are not certain if your installation complies with local or national codes, contact your local building inspector. Service by qualified personnel only. 10 ELTS2 Installation and User Operation Manual

15 Sense Feed Requirements Emergency Sense Feed Requirements Emergency sense feeds are a requirement for Type D (Discrete Feed) units only. Reference Type D (Discrete Feed) Overview on page 5 for an illustration of a typical installation. Emergency sense feed must connect to the ELTS through an external 15 Amp circuit breaker. Requirements for emergency sense is limited to only one hot and one neutral conductor from phase A of the emergency source. Both conductors are pulled to an external single pole 15 Amp circuit breaker, only the hot conductor is connected though. The conductors are then pulled through conduit to the ELTS unit where they will be connected at the control electronic board (120V AC units) or the emergency feed transformer (277V AC units). EMERGENCY POWER SOURCE (GENERATOR, INVERTER OR SECOND UTILITY) PHASE A HOT AND NEUTRAL SENSE FEED (BY OTHERS) CONNECT VIA SINGLE POLE 15 AMP CIRCUIT BREAKER (NEUTRAL PASSES THROUGH TO THE ELTS PHASE A HOT AND NEUTRAL SENSE FEED TO THE ELTS (BY OTHERS) Note: The circuit breaker may be 15 Amps but no more than 20 Amps. Normal Sense Feed Requirements Normal sense feed requirements vary depending on the installation. Normal Power Type Circuit Breaker Note 120 VAC 1Ø 2-wire 10A 1 pole A 10 amp circuit breaker is 208 / 120 VAC 3Ø 4-wire 10A 3 pole highly recommended but a 240 VAC 1Ø 2-wire 10A 1 pole 15 amp circuit breaker may 240 / 415 VAC 3Ø 4-wire 10A 3 pole be substituted if required. Example: For a single phase 120 VAC installation, the normal sense feed requirements include a single pole 10A circuit breaker and a neutral pass-through to the ELTS2. CONNECT 120 VAC 1Ø NORMAL POWER SENSE FEED (BY OTHERS) VIA SINGLE POLE 10A CIRCUIT BREAKER (BY OTHERS) (NEUTRAL PASSES THROUGH TO THE ELTS) SENSE FEED TO THE ELTS (BY OTHERS) SOURCE Note: The circuit breaker may be 10 amp but no more than 15 amp. Installation 11

16 Transfer Switch Specification A transfer switch is comprised of a pair of contactors, one for normal inputs and one for emergency inputs (factory wired). Transfer switches provide connection for line and neutral of two 20A circuits on the input side. The two contactors in the assembly are connected by a mechanical interlock in a manner that ensures the circuits break from normal power before making the transfer to emergency power, and vice-versa. Emergency inputs to the transfer switch are factory wired leaving only the normal inputs to the switch for customer termination. Load outputs from the transfer switch are factory wired to the over current protection fuses located at the bottom of the ELTS2, then to the emergency load output terminal block for customer termination. EM 1 2 NML 1 2 land normal loads here The transfer switches are rated for mixed loads consisting of resistive, tungsten and discharge lamps. Verify Contents of the Shipping Carton Before you begin installation check your shipment for physical damage that may have occurred during transit. If you discover damage be sure to document it to help with the claim to your shipper. Unpack your order and check the contents against the packing list to be sure your order is complete. Open the ELTS2 enclosure door and check for loose connections or broken components caused by shipping vibration. If you discover a problem, contact ETC at or toll free: Parts and Specialty Tools Required Required mounting hardware (not supplied by ETC) 4 each 3/8 bolts or screws 2-4 long, wall anchors are suggested. Required 1-10A external circuit breaker (not supplied by ETC) for normal sensing wires. This breaker may be 1, 2, or 3 pole depending on the power source. Cable Specification and Conduit Access Note: All Class 2 low voltage wiring is required to enter the unit in the top left conduit entry access point. Do not run the Class 2 wires in the same conduit as sense, phase, or load power wiring. 12 ELTS2 Installation and User Operation Manual

17 N N N N N N N N N N N N N N N N N N N N N N N N EM1 L EM1 N EM2 L EM2 N EM3 L EM3 N EM4 L EM4 N EM5 L EM5 N EM6 L EM6 N EM7 L EM7 N EM8 L EM8 N EM9 L EM9 N EM10 L EM10 N EM11 L EM11 N EM12 L EM12 N EM13 L EM13 N EM14 L EM14 N EM15 L EM15 N EM16 L EM16 N EM17 L EM17 N EM18 L EM18 N EM19 L EM19 N EM20 L EM20 N EM21 L EM21 N EM22 L EM22 N EM23 L EM23 N EM24 L EM24 N Type D (Discrete Feed) Cable Specification and Conduit Access Connection Purpose 20A circuit from a normal source (dimmer rack or circuit breaker panel) to the transfer switch 20A discrete emergency branch circuit breaker feed input Emergency lighting load output terminal strip (1) normal sense feed - single phase or three phase (must match normal power feeds) + neutral Fire Alarm - dry contact input Remote Stations Terminal Accepts 12-8 AWG 16 in/lbs 12-8 AWG 22-8 AWG 20-6 AWG 22-10AWG 2 conductor Class 2 Belden 9620 recommended or five runs of AWG Notes Line and neutral conductors only! No ground lugs provided in the ELTS2. Line and neutral conductors only! No ground lugs provided in the ELTS2. Normal power sense must connect to the ELTS2 through an external 10A circuit breaker. Reference Sense Feed Requirements on page 11 for details. normally closed dry contact input Up to 5 remote stations per system typically wired in a parallel topology. Connections are +24 VDC Class 2. Required conduit entry - normal sense feed, remote station data termination, and fire alarm contact input Transformers on 240 and 277 VAC units only Conduit entrydiscrete emergency branch circuit breaker feed input Conduit entry - normal load input from dimmer rack or branch circuit breaker panel Conduit entry - normal load input from dimmer rack or branch circuit breaker panel Conduit entry - load output from ELTS2 to emergency lighting loads Installation 13

18 N N N N N N N N N N N N Type M (Main Feed) Cable Specification and Conduit Access Purpose Terminal Accepts Notes 20A circuit from a normal source (dimmer rack or circuit breaker panel) to the transfer switch (1) normal sense feed - single phase or three phase NOTE: Must match normal power feeds + neutral Emergency Main Feed (small enclosure 2-12 circuits) Emergency Main Feed (large enclosure 2-24 circuits) Emergency lighting load output terminal strip Fire Alarm - dry contact input Remote Stations 14-8 AWG 16 in/lbs 6-20 AWG Ø, Gnd, and N lugs 2/0-14 AWG Ø and N lugs 350MCM - 6 AWG Ground lug 2/0-14 AWG 22-8 AWG AWG, 2 conductor Class 2 Belden 9620 recommended or five runs of AWG Line and neutral conductors only! No ground lugs provided in the ELTS2. Normal power sense must connect to the ELTS2 through an external 10A circuit breaker. Reference Sense Feed Requirements on page 11 for details. 10 ft-lbs Use with an emergency power source (generator, inverter or second utility) ft-lbs 10 ft-lbs NOTE: Emergency and normal power must match within the unit. normally closed dry contact input Up to 5 remote stations per system typically wired in a parallel topology. Connections are +24 VDC Class 2. Required conduit entry - normal sense feed input, remote station data termination, and fire alarm contact input. Transformers on 240 and 277 VAC units only. Conduit entry - emergency mains feed only Earth ground Conduit entry - normal load input from dimmer rack or branch circuit breaker panel Conduit entry - normal load input from dimmer rack or branch circuit breaker panel Conduit entry - load output from ELTS2 to emergency lighting loads 14 ELTS2 Installation and User Operation Manual

19 NORMAL MODE NORMAL POWER FIRE ALARM AUTO EMERGENCY MODE EMERGENCY POWER! WARNING! To reduce the risk of electric shock or injury to persons, disconnect all sources of supply before servicing. FIRE ALARM NORMAL MODE EMERGENCY MODE AUTO NORMAL EMERGENCY POWER POWER! WARNING! To reduce the risk of electric shock or injury to persons, disconnect all sources of supply before servicing. Installation Procedure Determine the Installation Location Locate the ELTS2 unit in a location where it will not be subject to tampering or vandalism. If possible, install the ELTS2 where it is most secure from damage by a fire, flood or other incident likely to require its use. The ELTS2 unit should be supported by a wall strong enough to hold the enclosure fully loaded with transfer switches. Reference Clearance on page 9 for product weight, dimensions and clearance requirements. After determining the installation location for your ELTS2 unit, follow the instructions outlined below to install the mounting hardware. Install Mounting Hardware Installation of the mounting hardware depends on the type of enclosure you are installing, the standard NEMA 1 or the optional NEMA 4 enclosure. CAUTION: ELTS2 units are heavy. Be sure you have proper equipment or assistance to lift the unit into place and support it while securing the mounting hardware. Large Small Large 28.5 Small 22.5 Large 46.5 Small 34.5 NEMA 1 enclosure Large 49.6 Small 37.6 Large Small NEMA 4 enclosure Large Small The NEMA 1 and NEMA 4 enclosures may be installed utilizing the standard top / bottom mounting tabs that are provided with the unit. As an alternative to the standard top / bottom tab mounting, you may install the NEMA 1 enclosure using the (optional) horizontal tab mounting kit for side mounting. Reference Side Mount Hardware Installation on page 35. Note: It is the installation contractors responsibility to follow all local code restrictions. Installation 15

20 FIRE ALARM NORMAL MODE EMERGENCY MODE AUTO NORMAL EMERGENCY POWER POWER FIRE ALARM NORMAL MODE EMERGENCY MODE AUTO NORMAL EMERGENCY POWER POWER! WARNING! To reduce the risk of electric shock or injury to persons, disconnect all sources of supply before servicing.! WARNING! To reduce the risk of electric shock or injury to persons, disconnect all sources of supply before servicing. Install NEMA 1 Enclosure CAUTION: ELTS2 units are heavy. Be sure you have proper equipment or assistance to lift the unit into place and support it while securing the mounting hardware. Large Small : Using the measurements provided, pre-drill and install two 3/ 8 mounting bolts for the lower two support keyhole slots. 2: Using the measurements provided, pre-drill the holes for the top two 3/8 mounting bolts. Large 46.5 Small 34.5 NEMA 1 enclosure Large 49.6 Small : Rest the enclosure on the wall, supported by the lower two mounting bolts installed in Step 1. 4: Secure the enclosure to the wall with the top two mounting bolts. 5: Check that the enclosure is plumb and secure to the wall. Strictly follow all local code restrictions. Large Small Install NEMA 4 Enclosure Note: Use watertight conduit hubs or equivalent provision for watertight connection at the conduit entrance to maintain the integrity of the NEMA 4 enclosure. CAUTION: ELTS2 units are heavy. Be sure you have proper equipment or assistance to lift the unit into place and support it while securing the mounting hardware. Large 28.5 Small : Using the measurements provided, pre-drill the holes for the bottom two 3/8 mounting bolts. 2: Align the enclosure to the wall and install the two 3/8 mounting bolts for the lower mounting support tabs. Large Small NEMA 4 enclosure 3: Install the two 3/8 mounting bolts for the top two mounting support tabs. 4: Check that the enclosure is plumb and secure to the wall. Strictly follow all local code restrictions. 16 ELTS2 Installation and User Operation Manual

21 NML 1 2 EM 1 2 N N N N N N N N N N N N N N N N N N N N N N N N EM1 L EM1 N EM2 L EM2 N EM3 L EM3 N EM4 L EM4 N EM5 L EM5 N EM6 L EM6 N EM7 L EM7 N EM8 L EM8 N EM9 L EM9 N EM10 L EM10 N EM11 L EM11 N EM12 L EM12 N EM13 L EM13 N EM14 L EM14 N EM15 L EM15 N EM16 L EM16 N EM17 L EM17 N EM18 L EM18 N EM19 L EM19 N EM20 L EM20 N EM21 L EM21 N EM22 L EM22 N EM23 L EM23 N EM24 L EM24 N Rough-In Conduit and Cable WARNING: RISK OF DEATH BY ELECTERICAL SHOCK! To prevent death or serious injury due to electrical shock, normal (utility) and emergency (alternate) power supplies must be turned off prior to connecting power source and load lines to the ELTS2 unit. Follow appropriate Lockout/Tagout procedures as mandated by NFPA 70E. Any work must comply with OSHA Safe Working Practices. Requirements for installation vary depending on the type of ELTS2 in your installation, type D - Discrete Feed or type M - Main Feed. Reference page 13 and page 14 for specification of cable and conduit access requirements for each ELTS2 type. Rough-In Conduit and Cable for Type D (Discrete Feed) Unit The discrete feed ELTS2 is designed for emergency systems where 20A emergency branch circuits (hot and neutral conductors only) are fed to the discrete emergency branch circuit terminal strip. Normal 20A circuits (hot and neutral conductors only) typically fed from an adjacent dimmer rack or circuit breaker panel are wired directly to the normal input side of transfer switch assembly. Each normal and emergency circuit to the ELTS2 must have branch circuit protection external of the ELTS2 unit. Sense Feeds: from sense circuit breaker phase A, B, C and neutral Class 2 conductors: from remote station & fire alarm contact input Emergency discrete feeds: from emergency branch panel to the terminal strip Normal discrete feeds: from dimmer rack or normal panel to the input side of transfer switches Emergency input to contactors (factory wiring) Load (output) wiring from contactors to fuses and emergency load output terminal strip (factory wiring) Emergency Load Output: from ELTS2 to normal/ emergency lighting loads Note: Do not pull individual circuit ground wires through the ELTS2 unit as ground lugs are not provided. ETC recommends pulling circuits through grounded metal conduit or providing other means of grounding each circuit. The normal sense feeds may enter the enclosure from the top left corner or top left side of the enclosure. Normal sense from the source must connect to external 10A circuit breaker first (provided by others), then pulled through conduit to the ELTS2 control board. See Sense Feed Requirements on page 11. Installation 17

22 N N N N N N N N N N N N ELTS2 units manufactured for 240 and 277 VAC operation include two transformers, one for Normal Mode operation and one for Emergency Mode operation. Normal (phase A and neutral) sense feed wiring connect at the transformer instead of the control electronics board. Normal phase B and phase C sense feeds connect at the control board. Low Voltage Class 2 conductors for remote stations and the fire alarm contact input should enter the enclosure from the top left or top left side of the unit. Rough-In Conduit and Cable for Type M (Main Feed) Unit The main feed ELTS2 is designed for systems where emergency mains are connected to phase lugs within the ELTS2 unit. Mains power is distributed to the transfer switches then to fuses which provide branch circuit protection. Note: Top conduit connections for mains feed are recommended to reduce the cable bending necessary to connect to the power lugs. Sense Feeds: from sense circuit breaker phase A, B, C and neutral Class 2 conductors: from remote station & fire alarm contact input Emergency Main Feed Options: 120/240 VAC, 1Ø, 3 wire + Ground 120/208 VAC, 3Ø, 4 wire + Ground 240/415 VAC, 3Ø, 4 wire + Ground 277/480 VAC, 3Ø, 4 wire + Ground Emergency input to contactors (factory wired) Normal discrete feeds: from dimmer rack or normal panel to the input side of transfer switches Load (output) wiring from contactors to fuses and emergency load output terminal strip (factory wiring) Emergency Load Output: from ELTS2 to normal/ emergency lighting loads Normal 20A circuits (hot and neutral conductors only) typically fed from an adjacent dimmer rack or circuit breaker panel are wired directly to the normal side of transfer switch assembly. Each circuit to the ELTS2 must have branch circuit protection external of the ELTS2 unit. Note: Do not pull individual circuit ground wires through the ELTS2 unit. ETC recommends pulling circuits through grounded metal conduit or providing other means of grounding each circuit. The normal sense feeds may enter the enclosure from the top left corner or top left side of the enclosure. Normal sense wires from the source must first connect to external 10A circuit breaker first (provided by others), then pulled through conduit to the ELTS2 control board. See Sense Feed Requirements on page ELTS2 Installation and User Operation Manual

23 ELTS2 units manufactured for 240 and 277 VAC operation include two transformers, one for Normal Mode operation and one for Emergency Mode operation. Normal phase A and neutral sense feed wiring connects at the transformer instead of the control board. Normal phase B and C sense feeds connect at the control electronics board. Low Voltage Class 2 conductors for remote stations and the fire alarm contact input should enter the enclosure from the top left or top left side of the unit. Note: Do not pull the Class 2 wires, fire alarm and remote station, through the same conduit as sense, phase, or load power wiring Installation 19

24 N N N N N N N N N N N N N N N N N N N N N N N N EM1 L EM1 N EM2 L EM2 N EM3 L EM3 N EM4 L EM4 N EM5 L EM5 N EM6 L EM6 N EM7 L EM7 N EM8 L EM8 N EM9 L EM9 N EM10 L EM10 N EM11 L EM11 N EM12 L EM12 N EM13 L EM13 N EM14 L EM14 N EM15 L EM15 N EM16 L EM16 N EM17 L EM17 N EM18 L EM18 N EM19 L EM19 N EM20 L EM20 N EM21 L EM21 N EM22 L EM22 N EM23 L EM23 N EM24 L EM24 N Connect Emergency Discrete Inputs for Type D Unit Connect Emergency Discrete Input Wires to the Terminal Strip EM1 L EM1 N EM2 L EM2 N EM3 L EM3 N EM4 L EM4 N EM5 L EM5 N EM6 L EM6 N EM7 L EM7 N EM8 L EM8 N EM9 L EM9 N EM10 L EM10 N EM11 L EM11 N EM12 L EM12 N EM13 L EM13 N EM14 L EM14 N EM15 L EM15 N EM16 L EM16 N EM17 L EM17 N EM18 L EM18 N EM19 L EM19 N EM20 L EM20 N EM21 L EM21 N EM22 L EM22 N EM23 L EM23 N EM24 L EM24 N Note: Discrete ELTS2 systems require external distribution and overload protection (circuit breaker) for each 20A circuit. 1: Locate the input side of the emergency discrete feed terminal strip. 2: Pull the emergency hot and neutral wires to the terminal strip from the branch circuit panel. Each terminal is clearly labeled with circuit designations. 3: Strip back each conductors sheathing 9/16. 4: Connect circuit #1 s emergency hot wire to the terminal strip beginning with the terminal labeled EM1 L a: Align a 5mm (3/16 ) slotted screwdriver with the top of the terminal and press down firmly until the terminal gate opens. EM1 L b: Insert the proper wire into the terminal and remove the screwdriver. EM1 N EM2 L EM2 N The wire will hold securely in place. EM3 L EM3 N EM4 L 5: Connect circuit #1 s emergency neutral wire to the terminal strip EM4 N EM5 L EM5 N beginning with the terminal labeled EM1 N. EM6 L EM6 N EM7 L a: Align a 5mm (3/16 ) slotted screwdriver with the top of the terminal EM7 N EM8 L EM8 N and press down firmly until the terminal gate opens. EM9 L EM9 N EM10 L b: Insert the proper wire into the terminal and remove the screwdriver. EM10 N EM11 L The wire will hold securely in place. EM11 N EM12 L EM12 N 6: Repeat steps 1 through 5 for all emergency discrete feeds. CAUTION: Care should be taken to ensure you are not inserting the wire sheathing into the terminal strip. 20 ELTS2 Installation and User Operation Manual

25 Connect Emergency Mains for Type M Unit Connect Mains Feed THREE PHASE Type M ELTS2 units manufactured for Three Phase are factory-wired with phase balanced emergency mains distribution (ØA, ØB, ØC) to fuses. A B C N SINGLE PHASE Type M ELTS2 units manufactured for Single Phase are factory-wired with phase balanced emergency mains distribution (ØA and ØC) to the integral branch circuit protection or fuses. A C N 1: Pull the emergency power cables to the phase lugs. 2: Strip each conductor back 5/8 for the large unit or 7/16 back for the small unit. 3: Connect phase mains input wires as illustrated in the graphics above for either single phase or three phase operation (as ordered). 4: Connect the neutral cable to the neutral lug. 5: Connect the ground cable to the ground lug. 6: the connections to the correct values using the table below: Enclosure size Phase Lugs Accept Phase Lugs Ground Lug Accepts Ground Lug Small (2-12 circuits) 2/0-14 AWG 160 in.lbs 2/0-14 AWG 120 in-lbs Large (2-24 circuits) 350MCM - 6 AWG 375 in.lbs 2/0-14 AWG 120 in-lbs CAUTION: Factory wiring may loosen during transit! Check each of the mains power distribution terminal blocks to ensure the factory wiring to the transfer switches remain secure after transport. Installation 21

26 Connect Wiring Connect Normal Input Wires to the Transfer Switch Connect Normal Wires Note: ELTS2 systems require external distribution and overload protection (circuit breaker) for each 20A circuit. 1: Locate the input side of the transfer switch assembly. Each terminal is clearly labeled with circuit designations. 2: Pull the normal discrete hot and neutral wires to the transfer switch input side. Termination is available for two normal 20A circuits per transfer switch. 3: Strip back each conductor 3/8. 4: Insert each wire into the appropriate terminal and secure. 5: Repeat for the remaining normal circuits in the ELTS2. 22 ELTS2 Installation and User Operation Manual

27 Connect Load Output Wires to the Terminal Strip N N N N N N N N N N N N 1: Locate the emergency load output terminal strip (beneath the fuses). Each terminal is clearly labeled with circuit designations. 2: Pull hot and neutral load wires for emergency circuit 1 to the terminal strip. 3: Strip back each conductor 9/16. 4: Connect the emergency lighting load hot wire for circuit # 1. a: Align a 5mm (3/16 ) slotted screwdriver with the top of the terminal and press down firmly until the terminal gate opens. b: Insert the proper wire into the terminal and remove the screwdriver. The wire will hold securely in place. 5: Connect the emergency lighting load neutral wire for circuit # 1. a: Align a 5mm (3/16 ) slotted screwdriver with the top of the terminal and press down firmly until the terminal gate opens. a: Insert the proper wire into the terminal and remove the screwdriver. The wire is held securely in place. 6: Repeat steps 1-5 for the remaining emergency lighting loads in the ELTS2 unit. Connect 120 VAC Sense Power Wiring Note: Connect normal sense wires from the source to an external circuit breaker first, then pull the sense wires from the external circuit breaker through conduit to the ELTS2. Reference Sense Feed Requirements on page 11 for installation requirements. 1: Locate the control electronics board on the top left side of the ELTS2 enclosure. 2: Pull the normal sense wires to the right side of the control electronics board. 3: Strip the conductors back 3/8. 4: Connect wires to the control electronics (reference graphics below for indication of termination location). Installation 23

28 3 Ø 4 Wire Installation 1 Ø 3 Wire Installation 1 Ø 2 Wire Installation E - NEUTRAL (FACTORY WIRING) E - PHASE A (FACTORY WIRING) E - NEUTRAL (FACTORY WIRING) E - PHASE A (FACTORY WIRING) E - NEUTRAL (FACTORY WIRING E - PHASE A (FACTORY WIRING LOCAL STATION RIBBON CABLE CONNECT N - PHASE C N - PHASE B N - PHASE A N - NEUTRAL LOCAL STATION RIBBON CABLE CONNECT N - PHASE C N - PHASE B N - PHASE A N - NEUTRAL LOCAL STATION RIBBON CABLE CONNECT N - PHASE C N - PHASE B N - PHASE A N - NEUTRAL REMOTE STATIONS REMOTE STATIONS REMOTE STATIONS FIRE ALARM FIRE ALARM FIRE ALARM Connect 240 and 277 VAC Sense Power Wiring Note: Connect normal sense wires from the source to an external circuit breaker first, then pull the sense wires from the external circuit breaker through conduit to the ELTS2. Reference Sense Feed Requirements on page 11 for installation requirements. 1: Locate the two transformers on the top of the ELTS2 sub panel. 2: Pull the normal phase A and neutral sense wire to the right side of the transformers and strip the conductors back 3/8. FACTORY WIRING THIS SIDE (EXCEPTIONS NOTED) CONTRACTOR WIRING THIS SIDE (EXCEPTIONS NOTED) EMERGENCY SENSE FEED XFORMER EMERGENCY NEUTRAL SENSE (FACTORY WIRING) EMERGENCY PHASE A SENSE (FACTORY WIRING) E - N E - ØA NORMAL PHASE C SENSE (CONTRACTOR WIRING) NORMAL PHASE B SENSE (CONTRACTOR WIRING) N - ØC N - ØB N - ØA N - N NORMAL SENSE FEED XFORMER **NOTE: THIS NEUTRAL IS FACTORY WIRED NORMAL NEUTRAL SENSE (CONTRACTOR WIRING) NORMAL PHASE A SENSE (CONTRACTOR WIRING) 3: Connect the wires as illustrated in the graphic above. 4: Pull the normal phase B and phase C sense wires to the control board and strip the conductors back 3/8. 5: Connect the wires as illustrated in the graphic above. 6: Reference Cable Specification and Conduit Access on page 12 for the terminal torque rating on each connection. 24 ELTS2 Installation and User Operation Manual

29 Connect Fire Alarm and Remote Station Wiring Locate J3 on the control electronics board. This two position screw terminal is the connection point for the dry contact input of the Fire Alarm system. When no contact input is required, leave the factory installed jumper in the terminal to maintain a closed circuit contact. Locate J2 on the control electronics board. This five position screw terminal is the connection point for the remote key switch station data wires. J1 on the control electronics board is the ribbon cable connection for the local key switch station on the door of the ELTS2 unit. This connection is made for you at the factory. TO LOCAL KEYSWITCH STATION (5) 16 AWG 24V DC (CLASS 2) (2) 16 AWG (CLASS 2) DRY CONTACT INPUT Connect Fire Alarm Wiring A jumper cable is installed in the fire alarm contact input of the ELTS2 when the unit is manufactured. This jumper cable maintains the closed contact input if no fire alarm contact input is installed. Remove this jumper wire only to replace it with dry contact input wiring from the fire alarm system. 1: Locate the two position screw terminal (J3) on the control electronics board. 2: Pull the fire alarm dry contact input wires required to the terminal. 3: Strip the conductors back 3/8. 4: Loosen the screws enough to remove the jumper cable from the terminal. 5: Insert the wires, one per position in the terminal and secure. Connect Remote Station Wiring Up to five remote stations may be connected to the ELTS2. Stations are interconnected with a five wire cable. If using multiple stations, they are connected in parallel. Note: Ensure the wire assignments used at the remote station and the ELTS2 match. For example, use five different colors of wire to ensure they can be easily identified for connection. 1: Locate the five position screw terminal (J2) on the control electronic board. 2: Pull the remote station wiring required to the terminal. 3: Strip the conductors back 3/8. 4: Insert the wires as follows: Position V Common Position 2 - Normal Switch Position 3 - Emergency Switch Position 4 - Normal Mode LED Position 5 - Emergency Mode LED Installation 25

30 Power Up and Check System Power Up WARNING: RISK OF DEATH BY ELECTERICAL SHOCK! To prevent death or serious injury due to electrical shock, close the ELTS2 door before applying power to the ELTS2. Any work must comply with OSHA Safe Working Practices. 1: Apply normal power to the ELTS2, the connected dimmer rack and/or circuit breaker panel at the main circuit breaker panel. When normal power is stable the Normal Mode LED on the local key switch station will illuminate and the transfer switches will switch all connected loads to the normal source power. The ELTS2 transfers to Normal Mode only when the normal power source is at or above the specified voltage required. See Specified Voltage Pickup and Dropout on page 29. 2: Apply emergency power to the ELTS2. When normal source power is at or above specified voltage required, the system will remain in Normal Mode. Automatic function of the system will change to Emergency Mode only when the fire alarm contact is sent or normal source power drops below specified voltage. See Specified Voltage Pickup and Dropout on page 29. 3: Check the indicators on the installed remote stations. Each station when properly installed will indicate the ELTS2 status with LED illumination, Normal Mode or Emergency Mode. Check System Voltage Use of a digital volt meter is required for this procedure. WARNING: RISK OF DEATH BY ELECTERICAL SHOCK! ELTS2 voltage tests should only be performed by qualified personnel using extreme caution! Opening the cabinet with power applied exposes you to death or severe injury from high voltage electrical shock. Any work must comply with OSHA Safe Working Practices. 1: Open the ELTS2 door. 2: Measure the sense feed voltage at the emergency power sense feed terminal blocks (phase A and neutral) on the control electronics board. Voltage should be within ± 10 percent of the rated voltage of the ELTS2 unit. (± 10% of 120, 240, or 277 VAC.) RIBBON CABLE FOR DATA TO LOCAL KEYSWITCH STATION (5) 16 AWG 24V DC (CLASS 2) LOCAL STATION RIBBON CABLE CONNECT E - NEUTRAL E - PHASE A N - PHASE C N - PHASE B N - PHASE A N - NEUTRAL (2) 16 AWG (CLASS 2) DRY CONTACT INPUT 3: Measure the sense feed voltage at the normal power sense feed terminal blocks. Voltage should be within ± 10 percent of the rated voltage for the ELTS2 unit. (± 10% of 120, 240, or 277 VAC.) a: Measure between phase A and neutral. b: Measure between phase B and neutral. c: Measure between phase C and neutral. 26 ELTS2 Installation and User Operation Manual

31 3-4: Measure the feed input of a mains feed ELTS2. Phase lugs are located in the upper right side of the ELTS2 unit and are clearly labeled A, B, C, N and ground. Check voltage across phase and neutral. Voltage values must be within ± 10 percent of the rated voltage for the ELTS2 unit. THREE PHASE 5: Measure each of the transfer switch normal circuit inputs (hot and neutral). Voltage values should be within ± 10 percent of the rated voltage. A B C N 6: Type discrete feed ELTS2 units only, measure each of the transfer switch emergency circuit inputs (hot and neutral). Voltage values should be within ± 10 percent of the rated voltage. NORMAL HOT 1 NORMAL NEUTRAL 1 NORMAL HOT 2 NORMAL NEUTRAL 2 EMERGENCY EMERGENCY EMERGENCY HOT EMERGENCY 1 HOT 2 NEUTRAL 1 NEUTRAL 2 NML 1 2 EM T1 4T2 6T3 8T4 2T1 4T2 6T3 8T4 Manual Operation Manual operation is not the preferred method of switching the transfer switches from normal to emergency power and vice-versa. As a last resort, if an electrical short has disabled the control electronics, you have the option of manually switching each of the transfer switches. For manual operation you must follow the same practice that the ELTS2 follows during automatic operation, this includes break-before-make switching. Each transfer switch is made of a pair of contactors with a mechanical latch per contactor. Each mechanical latch includes two buttons, one black round button and one red rectangular button. The black button depresses when the contactor is active, the red button releases the contactor. 1: To deactivate an active conductor press the red release button. The contactor will deactivate the power source from the lighting loads. 2: To activate the other side of the transfer switch depress the black button firmly until it catches. (If the button will not depress, check that the other contactor has deactivated). Automatic Operation Test Test the automatic function of the ELTS2 to ensure its ability to switch from normal to emergency power when normal power is interrupted and back again when it is restored. 1: Check the Normal Mode LED on the local station of the ELTS2 is illuminated. 2: Turn off normal power to the dimmer rack or circuit breaker panel connected to the ELTS2. The Normal Mode LED on the local station of the ELTS2 will deactivate. The ELTS2 switches to emergency power, the Emergency Mode LED illuminates, and all connected loads will illuminate to full bright. Installation 27